Here is how to point Tv antennas ,
http://www.kyes.com/antenna/pointing/pointing.html . About what magnetic compass direction is the XG91 pointed?? . It would help us help you if you would communicate about the actual reception parts of your situation. I feel like helping you is just beyond my finger tips. Read and understand about , REAL Digital Broadcast Tv Channels , Virtual Digital Broadcast Tv Channels , Analog Broadcast Tv Channels ,
http://forum.tvfool.com/showthread.php?t=695